Sorry

You may remember what it was like in the dark ages. The days when you had to use a pen
or
search for wireless hotspots. How ever did we survive? Then Informatica descended, like some kind of savior, offering
their combination pen/Wi-Fi detector. That's right, it lets you locate ways to log onto the Internet or, hey, just forego the Internet altogether. Sometimes you don't need an IP to jot down a note, you know?

The device works by pushing a button on the barrel: it then displays a red, yellow, or green light depending on the strength of the signal (it doesn't, however, appear to tell you whether or not said network is encrypted). It costs $20, and claims to detect networks at up to 50 feet. No word on what color ink.